{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:EWDLSBSD25L3OTEQ7CDVZGZW42","short_pith_number":"pith:EWDLSBSD","canonical_record":{"source":{"id":"1607.08658","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-28T22:56:00Z","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"title_canon_sha256":"2937c1ac74bf764a0d150c0c2a9e08c4f33e4c9ee19bfbe2a144922e81748fba","abstract_canon_sha256":"98f9eb42b2c80d3da2e64bd4f348a6caf76cfa0ec33dbc5793c71fca9572cd18"},"schema_version":"1.0"},"canonical_sha256":"2586b90643d757b74c90f8875c9b36e6b9f2cce80f13bea90e92ece0253c33e7","source":{"kind":"arxiv","id":"1607.08658","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.08658","created_at":"2026-05-18T01:02:37Z"},{"alias_kind":"arxiv_version","alias_value":"1607.08658v2","created_at":"2026-05-18T01:02:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.08658","created_at":"2026-05-18T01:02:37Z"},{"alias_kind":"pith_short_12","alias_value":"EWDLSBSD25L3","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"EWDLSBSD25L3OTEQ","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"EWDLSBSD","created_at":"2026-05-18T12:30:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:EWDLSBSD25L3OTEQ7CDVZGZW42","target":"record","payload":{"canonical_record":{"source":{"id":"1607.08658","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-28T22:56:00Z","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"title_canon_sha256":"2937c1ac74bf764a0d150c0c2a9e08c4f33e4c9ee19bfbe2a144922e81748fba","abstract_canon_sha256":"98f9eb42b2c80d3da2e64bd4f348a6caf76cfa0ec33dbc5793c71fca9572cd18"},"schema_version":"1.0"},"canonical_sha256":"2586b90643d757b74c90f8875c9b36e6b9f2cce80f13bea90e92ece0253c33e7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:02:37.520086Z","signature_b64":"K3/5Hul5EJtMFs9mXqTQMWyjdeAPtBtgaVEniii9s9YpmoBxEga5aMGl7O8uknxC+7gJ+Hrn0crmJdbBfkYvDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2586b90643d757b74c90f8875c9b36e6b9f2cce80f13bea90e92ece0253c33e7","last_reissued_at":"2026-05-18T01:02:37.519579Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:02:37.519579Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1607.08658","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:02:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DoWrccZOxZjPvC3TvAPAP42PLEGwfHEokhFfT05rKpazTSA9ZjySWoneurJdJjJozEsaLIPWHsDEaZjzFr1WCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T21:33:10.127268Z"},"content_sha256":"fbdf20f7e499ed43561d5beb366aed7f6346ce5d21c4794d0cff70b3cee123c1","schema_version":"1.0","event_id":"sha256:fbdf20f7e499ed43561d5beb366aed7f6346ce5d21c4794d0cff70b3cee123c1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:EWDLSBSD25L3OTEQ7CDVZGZW42","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optical Identification of Cepheids in 19 Host Galaxies of Type Ia Supernovae and NGC 4258 with the Hubble Space Telescope","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Adam G. Riess, Alexei V. Filippenko, Ariel Goobar, Brad E. Tucker, Douglas L. Welch, Jeffrey M. Silverman, Lucas M. Macri, Rahman Amanullah, Ryan Chornock, Ryan J. Foley, Samantha L. Hoffmann, Stefano Casertano, Wenlong Yuan","submitted_at":"2016-07-28T22:56:00Z","abstract_excerpt":"We present results of an optical search for Cepheid variable stars using the Hubble Space Telescope (HST) in 19 hosts of Type Ia supernovae (SNe Ia) and the maser-host galaxy NGC 4258, conducted as part of the SH0ES project (Supernovae and H0 for the Equation of State of dark energy). The targets include 9 newly imaged SN Ia hosts using a novel strategy based on a long-pass filter that minimizes the number of HST orbits required to detect and accurately determine Cepheid properties. We carried out a homogeneous reduction and analysis of all observations, including new universal variability sea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.08658","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:02:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sy9pZDoZWLfSiev7/B+BpyYzpPSmWUm1SWL3q7eZkXv0fCNssJAYSLi6u4RiaxPsSklQO0+H1c81y/PVc07QDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T21:33:10.127845Z"},"content_sha256":"d34630f3472d406c2c26b717df5cf35316370541830cdd6871a81019f7706f33","schema_version":"1.0","event_id":"sha256:d34630f3472d406c2c26b717df5cf35316370541830cdd6871a81019f7706f33"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EWDLSBSD25L3OTEQ7CDVZGZW42/bundle.json","state_url":"https://pith.science/pith/EWDLSBSD25L3OTEQ7CDVZGZW42/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EWDLSBSD25L3OTEQ7CDVZGZW42/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-18T21:33:10Z","links":{"resolver":"https://pith.science/pith/EWDLSBSD25L3OTEQ7CDVZGZW42","bundle":"https://pith.science/pith/EWDLSBSD25L3OTEQ7CDVZGZW42/bundle.json","state":"https://pith.science/pith/EWDLSBSD25L3OTEQ7CDVZGZW42/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EWDLSBSD25L3OTEQ7CDVZGZW42/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:EWDLSBSD25L3OTEQ7CDVZGZW42","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"98f9eb42b2c80d3da2e64bd4f348a6caf76cfa0ec33dbc5793c71fca9572cd18","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-28T22:56:00Z","title_canon_sha256":"2937c1ac74bf764a0d150c0c2a9e08c4f33e4c9ee19bfbe2a144922e81748fba"},"schema_version":"1.0","source":{"id":"1607.08658","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.08658","created_at":"2026-05-18T01:02:37Z"},{"alias_kind":"arxiv_version","alias_value":"1607.08658v2","created_at":"2026-05-18T01:02:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.08658","created_at":"2026-05-18T01:02:37Z"},{"alias_kind":"pith_short_12","alias_value":"EWDLSBSD25L3","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"EWDLSBSD25L3OTEQ","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"EWDLSBSD","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:d34630f3472d406c2c26b717df5cf35316370541830cdd6871a81019f7706f33","target":"graph","created_at":"2026-05-18T01:02:37Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We present results of an optical search for Cepheid variable stars using the Hubble Space Telescope (HST) in 19 hosts of Type Ia supernovae (SNe Ia) and the maser-host galaxy NGC 4258, conducted as part of the SH0ES project (Supernovae and H0 for the Equation of State of dark energy). The targets include 9 newly imaged SN Ia hosts using a novel strategy based on a long-pass filter that minimizes the number of HST orbits required to detect and accurately determine Cepheid properties. We carried out a homogeneous reduction and analysis of all observations, including new universal variability sea","authors_text":"Adam G. Riess, Alexei V. Filippenko, Ariel Goobar, Brad E. Tucker, Douglas L. Welch, Jeffrey M. Silverman, Lucas M. Macri, Rahman Amanullah, Ryan Chornock, Ryan J. Foley, Samantha L. Hoffmann, Stefano Casertano, Wenlong Yuan","cross_cats":["astro-ph.CO","astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-28T22:56:00Z","title":"Optical Identification of Cepheids in 19 Host Galaxies of Type Ia Supernovae and NGC 4258 with the Hubble Space Telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.08658","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:fbdf20f7e499ed43561d5beb366aed7f6346ce5d21c4794d0cff70b3cee123c1","target":"record","created_at":"2026-05-18T01:02:37Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"98f9eb42b2c80d3da2e64bd4f348a6caf76cfa0ec33dbc5793c71fca9572cd18","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-28T22:56:00Z","title_canon_sha256":"2937c1ac74bf764a0d150c0c2a9e08c4f33e4c9ee19bfbe2a144922e81748fba"},"schema_version":"1.0","source":{"id":"1607.08658","kind":"arxiv","version":2}},"canonical_sha256":"2586b90643d757b74c90f8875c9b36e6b9f2cce80f13bea90e92ece0253c33e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2586b90643d757b74c90f8875c9b36e6b9f2cce80f13bea90e92ece0253c33e7","first_computed_at":"2026-05-18T01:02:37.519579Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:02:37.519579Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K3/5Hul5EJtMFs9mXqTQMWyjdeAPtBtgaVEniii9s9YpmoBxEga5aMGl7O8uknxC+7gJ+Hrn0crmJdbBfkYvDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:02:37.520086Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.08658","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fbdf20f7e499ed43561d5beb366aed7f6346ce5d21c4794d0cff70b3cee123c1","sha256:d34630f3472d406c2c26b717df5cf35316370541830cdd6871a81019f7706f33"],"state_sha256":"511b57d71f4aacc8767906f1d6d2a9d38e0d53d7a4fe13b68ad76db41fdb99a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KN7p6Jk1ZEkJ+3rqthvd7j8h3SORwoSRj3tsVOs5t3cHhxowzOTel8Umznk3S86rV3ybH20plUDTROiwXQqKAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T21:33:10.132971Z","bundle_sha256":"30227a68aee17610360e3595c4f35608cfe2503df24898205d7d223517e7ada7"}}